sublime.Selection behaves like a list yet exhibits this behaviour:
>>> sel = sublime.active_window().active_view().sel()
>>> sel.clear()
>>> len(sel)
0
>>> bool(sel)
True
Shouldn’t sublime.Selection.__bool__() return False when there are no selections?
I’m using Sublime Text 3.2.2 on macOS.
The Selection.__bool__ method returns an indication that the selection is “valid”; i.e. that it is the selection for a view that actually exists:
def __bool__(self):
return self.view_id != 0
In the more recent 4xxx builds, the new Python 3.8 plugin host has an augmented implementation of this method that behaves more like you would expect:
def __bool__(self):
return self.view_id != 0 && len(self) > 0
The legacy Python 3.3 plugin host in this builds still uses the other implementation to be backwards compatible with existing plugins that haven’t been updated for the new host yet.
Great, thanks!